.top {
  width: 100%;
  height: 30px;
  justify-content: space-around;
  //棕色
  background-color: #f7f1e3;
  position: fixed;
  top: 36px;
  left: 0;
  z-index: 999;
}
.tabt {
  margin-top: 75px;
  //消除float浮动的影响
}
.youkepu {
  width: 100%;
  height: 30px;
  div {
    float: right;
    color: blue;
  }
}
